Question

A sigma bond is formed by the overlapping of:

• A. $s-s$ orbital alone
• B. $s$ and $p$ orbital alone
• C. $s-s,s-p$ or $p-p$ orbital along internuclear axis
• D. $p-p$ orbital along the sides

Answer 1

Answer: (C)

$s-s,s-p$ or $p-p$ orbital along internuclear axis

A sigma bond is formed by the overlapping of $s-s,s-p$ or $p-p$ orbital along inter-nuclear axis. On the other hand, the lateral overlap of $p-p$ orbitals gives a pi bond.